Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974apj...193...43b&link_type=abstract
Astrophysical Journal, vol. 193, Oct. 1, 1974, pt. 1. p. 43-54. NSF-supported research;
Astronomy and Astrophysics
Astrophysics
183
Brightness Temperature, Energy Spectra, Extragalactic Radio Sources, Extraterrestrial Radiation, Nonthermal Radiation, Quasars, Synchrotron Radiation, Astronomical Models, Compton Effect, Electron Distribution, Radio Spectra, Relativistic Theory, Self Absorption, Tables (Data)
Scientific paper
The energy content of the compact incoherent electron-synchrotron sources 3C 84, 3C 120, 3C 273, 3C 279, 3C 454.3, CTA 102, 3C 446, PKS 2134+004, VRO 42.22.01 and OJ 287 is calculated on the assumption that the low-frequency turnovers in the radio spectrum are due to self-absorption and that the electron distribution is isotropic. The dependence of the source parameters on various modifications of the standard assumptions is determined. These involve relativistic motions, alternate explanations for the low-frequency turnover, proton-synchrotron radiation, and distance to the source. The canonical interpretation is found to be accurate in many respects; some of the difficulties and ways of dealing with them are discussed in detail.
Burbidge G. R.
Jones Thomas W.
Odell S. L.
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